Remove shortcut for removed brightness/contrast filter
Remove shortcut for the the brightness/contrast curvers filter, since that filter was removed in Krita 4.0
Test Plan
Go to configure Krita-> keyboard shortcuts
and observe that "Brightness/Contrast curves" shortcut is removed
Formalities Checklist
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I confirmed this builds. -
I confirmed Krita ran and the relevant functions work. -
I tested the relevant unit tests and can confirm they are not broken. (If not possible, don't hesitate to ask for help!) -
I made sure my commits build individually and have good descriptions as per KDE guidelines. -
I made sure my code conforms to the standards set in the HACKING file. -
I can confirm the code is licensed and attributed appropriately, and that unattributed code is mine, as per KDE Licensing Policy.